2.2.1 - Electron Structure Flashcards
(14 cards)
What is Ionisation energy?
Ionisation energy is the energy needed to remove an electron from the atom
How many electrons can the first shell of an atom hold?
2
How many electrons can the second shell of an atom hold?
8
How many electrons can the third shell of an atom hold?
18
How many electrons can the fourth shell of an atom hold?
32
What equation do you use to workout how many electronsd a shell holds?
2n²
(n being the shell number)
Within the shells do the electrons stay in one place?
No, they move around
Where are the electrons in an atom?
The electrons can be found anywhere around the nucleus BUT are most likely found within their orbitals
How many orbitals are there in the third shell?
9 total
( 1s, 3p, 5d)
How many orbitals are there in the fourth shell?
16 total
( 1s, 3p, 5d, 7f)
How many electrons can each orbital hold?
2
What is the shape of an s orbital?
sphere
What is the shape of a p orbital?
dumbbell - like
Wherever possible, electrons will try to occupy an orbital on their own. Why?
Electrons repel each other
